Journal:
:journal of dental research, dental clinics, dental prospects
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arezoo jahanbin associate professor of orthodontics, faculty of dentistry, mashhad university of medical sciences, mashhad, iran
mohammad basafa professor of orthodontics, faculty of dentistry, mashhad university of medical sciences, mashhad, iran
mostafa moazzami associate professor of restorative dentistry, dental research center, faculty of dentistry, mashhad university of medical sciences, mashhad, iran
behnoush basafa dentist, mashhad, iran
neda eslami assistant professor of orthodontics,dental research center, mashhad university of medical sciences
background and aims. the aim of this study was to evaluate the effect of different etching times on enamel color stability after immediate versus delayed exposure to colored artificial saliva (cas). materials and methods. human first premolars were divided into five groups of twenty. a colorimeter was used according to the cie system on the mid-buccal and mid-lingual surfaces to evaluate initia...